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(11) | EP 2 381 571 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Charging systems with direct charging port support and extended capabilities |
| (57) An alternating current (AC) to direct current (DC) power converter may have a connector
with a pair of power supply contacts and a pair of data contacts. An electronic device
may be connected to the connector of the power converter. The power converter may
supply DC power to the electronic device using the power supply contacts. The power
converter may include control circuitry that has a resistor coupled across the data
contacts. When the electronic device and the power converter are connected to each
other, each may advertize to the other that capabilities are present that exceed industry
standards. At the same time, standard-compliant discovery operations may be performed
to probe the value of the resistance of the resistor that is coupled across the data
contacts. When extended capabilities are discovered, extended functions may be performed
including accelerated charging functions and data communications functions.
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